Volvo Dana 1031 Diff - from Early 90s 240 - New Ratio Needed
Discussion
Hello clever PHers!
It's been a while since I posted, but I am struggling, and my powers of Googling are failing me today.
A friend has a kit car, it has an axle from a Volvo 240 with a 3.91:1 ratio in it.
This means it tops out at 120mph, ish.
That would be fine, if it didn't have 250hp+, and weigh around 700kg. As a result, on a track day, on a full size track, it spends way too long on the limiter, and isn't as much fun as it should be.
Added to this, 1st gear is totally useless.
So we'd like to find either the 3.31:1 lowest ratio made for this diff - or even better a slightly taller one still if possible, maybe one could be made to suit?
Can anybody point me in the right direction, or does anybody have a shed full of old Volvo diffs they would be interested in searching?
Thanks very much for any help and pointers - we'd really like to get it ready to have fun this track season, and not be on the limiter so much again!
Here's a pic of the car in question:
It's been a while since I posted, but I am struggling, and my powers of Googling are failing me today.
A friend has a kit car, it has an axle from a Volvo 240 with a 3.91:1 ratio in it.
This means it tops out at 120mph, ish.
That would be fine, if it didn't have 250hp+, and weigh around 700kg. As a result, on a track day, on a full size track, it spends way too long on the limiter, and isn't as much fun as it should be.
Added to this, 1st gear is totally useless.
So we'd like to find either the 3.31:1 lowest ratio made for this diff - or even better a slightly taller one still if possible, maybe one could be made to suit?
Can anybody point me in the right direction, or does anybody have a shed full of old Volvo diffs they would be interested in searching?
Thanks very much for any help and pointers - we'd really like to get it ready to have fun this track season, and not be on the limiter so much again!
Here's a pic of the car in question:
Edited by EvilChap on Thursday 14th January 16:53
Fitting the axle and getting it all setup was 'a challenge' - so we'd prefer to be able to unbolt it, change the ratio, then rebolt it.
The idea of having to make a whole new axle fit, at this stage, is unappealing
It's a valid point though, and if we cant solve it this way, is an option for sure.
The idea of having to make a whole new axle fit, at this stage, is unappealing
It's a valid point though, and if we cant solve it this way, is an option for sure.
Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff